JPH107125A - Carton tape and carton packaging body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily unpack a carton packaging body without using a cutting utensil by providing an easily breakable part of a thin width, which extends in the longitudinal direction, at an intermediate location in the width direction of a carton tape main body. SOLUTION: At the central part in the width direction of a carton film 4 of which the raw material is a biaxially drawn polypropylene film, and which has an adhesive layer on one surface, an easily breakable part 5 comprising of a plurality of rows of perforations which are arranged in rows, is provided. The easily breakable part 5 of the carton tape 4 is arranged so as to be located between lid pieces 3, 3 of a carton 2, and the carton tape 4 is bonded to the lid pieces 3, 3 in a manner to be bridged between the lid pieces 3, 3, and a carton packaging body 1 is formed. When the carton packaging body 1 is unsealed, the easily breakable part 5 of the carton tape 4 is firmly pressed from the top. By doing so, the carton tape 4 is broken in two from the easily breakable part 5, and the carton packaging body 1 can be easily unsealed by opening the lid pieces 3, 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carton tape which can be broken at an intermediate position in the width direction without using a cutting tool, and a carton package using the carton tape.

[0002]

2. Description of the Related Art Carton tape is provided with an adhesive layer on one side of a tape material formed of paper or a synthetic resin film, and a release agent layer on the other side, and the tape material is wound around a core material.
It is made by cutting a wound tape material to a predetermined width. This carton tape has a considerable breaking strength though it differs depending on the tape material, and has a structure that cannot be easily broken.

[0003] In a carton package, a carton that is bent into a box shape is covered with a cover piece, and a carton tape is disposed so as to bridge the edges of the pair of cover pieces. Are formed by bonding the edges of the lid pieces to each other. To open the carton package,
Opening the lid pieces requires opening the lid pieces by breaking the carton tape adhered to the edges of the pair of lid pieces or peeling the carton tape from the lid pieces.

[0004]

The breaking strength of the carton tape is determined by the tensile strength of the tape material. If the tensile strength of the carton tape is reduced so that the tape can be easily broken, the carton tape functions as a carton tape. When the tensile strength of the carton tape is increased, a separate cutting tool is required to break the carton tape.

[0005] The carton package is formed by bonding the edges of a pair of lid pieces covering the opening of the carton with a carton tape, and the carton tape is bonded between the edges of the pair of lid pieces. Upon opening, the carton tape must be broken using a cutting tool or the carton tape must be peeled from the lid piece.

The present invention has been made in view of the above points, and an object of the present invention is to provide a carton tape which can be broken at an intermediate position in the width direction without using a cutting tool, and a carton package using the carton tape. And

[0007]

A carton tape according to the present invention is provided with a narrow-width easy-to-break portion extending in the longitudinal direction at an intermediate position in the width direction of a biaxially stretched polypropylene film constituting a carton tape main body. Easy cutting from the easy part.

In the carton package of the present invention, a carton tape provided with an easy-to-break portion extending in the longitudinal direction at an intermediate position in the width direction is bonded so that the easy-to-break portion is along the edge of the lid piece covering the opening of the carton. Thereby, the carton tape can be easily torn at the easily breakable portion, and can be opened without using a cutting tool.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a carton package. This carton package 1 is formed of a carton 2 formed of cardboard and a carton tape 4 adhered to the cover pieces 3 and 3 so as to bridge the cover pieces 3 and 3 of the carton 2.

As shown in FIG. 2, the carton tape 4 has a carton tape main body 6 made of a biaxially stretched polypropylene film having a thickness of 40 μm and having a narrow width easy-to-break portion 5 provided at the center in the width direction. And an adhesive layer 7 provided on one surface of the carton tape body 6. Since this kind of carton tape 4 is marketed in a wound state, a release agent (not shown) is applied to the surface of the carton tape main body 6 on the side opposite to the adhesive layer 7.

The easily breakable portion 5 provided on the carton tape 4 is, for example, 4 mm if the tape width is 50 mm.
The easily breakable portion 5 is formed by five perforations arranged in a line. In this case, each perforation is 1 mm
, And a continuous portion of 0.5 mm, and the adjacent perforations are such that the slit of the other perforation is located at the continuous portion of one perforation.

FIG. 3 shows another embodiment of the carton tape according to the present invention. In this embodiment, the carton tape 4a has a thickness of 40 μm having a narrow width easy-to-break portion 5a at the center in the width direction. And a non-stretched polypropylene layer 9 having a thickness of 20 μm. When the carton tape body 6a is composed of two layers of polypropylene layers 8 and 9, the easily breakable portion 5 is formed by pressing a disc with a sandpaper wound around the entire surface of the polypropylene layer to form a scratched surface. Can also.

Next, the operation will be described.

The carton package 1 is arranged so that the easily breakable portion 5a of the carton tape 4 is located between the cover pieces 3 and 3 of the carton 2 so that the carton tape 4 bridges the cover pieces 3 and 3. The opening of the carton 2 is closed by the lid pieces 3 and 3. In this case, the easily breakable portion 5a of the carton tape 4 is not broken unless a force in the pushing direction acts on the lid pieces 3 and 3, since the easily breakable portion 5a is located in the edge direction of the lid pieces 3 and 3.

In order to open the carton package 1, the carton tape 4 is torn strongly when the easy-to-break portion 5a of the carton tape 4 is pressed, whereby the carton tape 4 is broken into two pieces from the easy-to-break portion 5a and the cover pieces 3, 3 are opened. . This opening can be performed without preparing a cutting tool.

[0017]

As described above, according to the present invention, the carton package can be opened without using a cutting tool.

[Brief description of the drawings]

FIG. 1 is a perspective view of a carton package according to the present invention.

FIG. 2 is a cross-sectional view of a carton tape according to the present invention.

FIG. 3 is a diagram showing another embodiment of the carton tape according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Carton package 2 Carton 3 Lid piece 4 Carton tape 5 Easy breaking part

Claims (3)

[Claims] 1. A carton tape having a carton tape main body made of a biaxially stretched polypropylene film as a material and an adhesive layer provided on one surface of the carton tape main body. A carton tape characterized in that it has a narrow-width easy-to-break portion extending to the tape. 2. The carton tape according to claim 1, wherein the easily breakable portion is a plurality of rows of perforations. 3. A carton, characterized in that a carton tape provided with an easy-to-break portion extending in the longitudinal direction at an intermediate position in the width direction is adhered so that the easy-to-break portion is along the edge of a lid piece covering the opening of the carton. Packaging.